Eclipse自带的bookemark不好用,用这个Quickmarks plugin。 
http://eclipse-tools.sourceforge.net/quickmarks/index.html 
用法: 
Ctrl+Alt+1    add a bookmark with the label Mark-1 ... Ctrl+Alt+9    add a bookmark with the label Mark-9
  Alt-1         jump to the bookmark with the label Mark-1 ... Alt-9         jump to the bookmark with the label Mark-9
  If you add a bookmark that exist already, the old one will be deleted.
   
 
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